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Bulletin issued at 23:02 HKT 18/Oct/2019

At 11 p.m. at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 69 per cent.

The air temperatures at other places were:

King's Park 25 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 21 degrees;
Lau Fau Shan 24 degrees;
Tai Po 24 degrees;
Sha Tin 23 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 24 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 24 degrees;
Shek Kong 22 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 22 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 25 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 24 degrees;
Stanley 23 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 26 degrees;
Yuen Long Park 24 degrees;
Tai Mei Tuk 25 degrees.


Note: The data above is provisional. Only limited data validation has been carried out.


Climatological Information for 18 Oct

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Bulletin updated at 23:15 HKT 18/Oct/2019

Here is the latest weather bulletin issued by the Hong Kong Observatory.

The northeast monsoon affected southern China today. Locally, it was mainly fine. There were isolated showers at first. The weather was dry during the day and the relative humidity over the territory once fell below 60 per cent. As the dry northeast monsoon persists, the weather will be generally fine over southern China in the next few days. Temperature difference between day and night will be relatively large over inland areas.

Besides, the area of low pressure over the seas east of the Philippines intensified into a tropical storm gradually this morning, and was named Neoguri. At 11 p.m., Neoguri was centred about 960 kilometres east-southeast of Gaoxiong. It is forecast to be slow-moving, lingering over the western North Pacific to the east of Luzon Strait.

Weather forecast for Hong Kong (Saturday, 19 Oct 2019)

Mainly fine. One or two rain patches in the morning and at night. The minimum temperature will be about 24 degrees in the urban areas, and a couple of degrees lower in the New Territories. Dry during the day with a maximum temperature of around 29 degrees. Moderate east to northeasterly winds, fresh offshore later.

Outlook : Mainly fine in the following couple of days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 19/10/2019; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 18/Oct/2019

N0 WARNING.

GENERAL SITUATION AT 180900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 181300 UTC:

HONG KONG= E TO NE 4-5. RAIN PATCHES. SEA UP TO 2 M. SWELL NE 2 M. TEMP 24-29 C. =
KWANGTUNG= NE 5-6, OCNL 7 IN E. RAIN PATCHES. SEA 2-3 M, UP TO 4 M IN E. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 6-7. FINE. SEA 3-4 M. SWELL NE 3 M. =
BASHI= N TO NE 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 3 M. =
PRATAS= NE 5-6, OCNL 7. ISOL SHOWERS. SEA UP TO 4 M. SWELL NE 3 M. =
BALINTANG= N TO NE 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 3 M. =
SCARBOROUGH= NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
PARACEL= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= N TO NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL NE 2 M. =
NNNN
Abbreviations:
KT, VRB, SLW, FRQ - knot, variable, slow, frequent STNR, QSTNR, C - stationary, quasi-stationary, degrees celsius WKN, INTSF, INTST, NC - weaken, intensify, intensity, no change LGT, ISOL, SCT, OCNL - light, isolated, scattered, occasional CLD, DZ, TS - cloudy, drizzle, thunderstorm

The date and time are specified by a 6-digit number DDHHMM. DD stands for the day of month, HH represents the hour while MM indicates the minute in UTC.


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    • SOUTH CHINA COASTAL WATERS
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    South China Coastal Waters

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    Bulletin issued at 23:30 HKT 18/Oct/2019

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 18 October 2019

    Warnings:
    Strong winds in Nan'ao, Shanwei, south of Hong Kong and Shangchuan Dao.

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    At 11 p.m., Tropical Storm Neoguri with maximum sustained winds of about 65 kilometres per hour near its centre was located at 20.4 degrees north, 129.2 degrees east. It is forecast to be slow-moving, lingering over the western North Pacific to the east of Luzon Strait.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5.
    A few rain patches.
    Moderate seas.

    Nan'ao:
    Northeast force 5 to 6, occasionally force 7.
    Moderate to rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6, up to force 7 in east.

    Latest reports from south China coastal weather stations
    --------------------------------------------------------

    Waglan Island Wind east-southeast force 2
      Visibility 25 Kilometres

    Shantou Wind east force 2
      Visibility 23 Kilometres

    Dongsha Wind northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind east force 2

    Xisha Wind northeast force 3
      Visibility 16 Kilometres

  • Explanation of Seas or Sea Waves
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 18/OCT/2019
    (Next update at 01:30 HKT 19/OCT/2019)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  040/5-10
       OFFSHORE:  040/10-15                            29-23
   B.   2000 FT:  070/10-15                            20
   C.   5000 FT:  350/15                               15
   D.  10000 FT:  330/10                               11
   E.  18000 FT:  250/15                               MS4
   F.  24000 FT:  250/25                               MS15
   G.  30000 FT:  230/30                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE.  A FEW RAIN PATCHES TOMORROW
      MORNING.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10800 FT
   M. TURBULENCE    : MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 1.5-2.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO NORTHEASTERLY WINDS.
     MAINLY FINE.=

    ===================================================================
Note: The forecast could be updated before the next issue time 
whenever there is newly expected occurrence or non-occurrence 
of significant weather as described below which may be hazardous 
to aircraft within 100-km radius of Hong Kong:

(a) Change of the tropical cyclone category
(b) Strong, Gale, Storm, and Hurricane force winds
(c) Thunderstorm/CBs
(d) Severe gusts
(e) Severe turbulence
(f) Significant low stratus
(g) Fog or thick haze/sandstorm/duststorm 
    causing significant reduction of visibility
(h) Volcanic ash
(i) Radioactive cloud
===================================================================
    Aviation Weather Observation and Forecast Information for Hong Kong International Airport
    To know more about clouds, please see Commonly observed clouds in Hong Kong.

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    Significant Weather Information (SIGMET)

    The Airport Meteorological Office is responsible for monitoring hazardous weather and phenomena in the atmosphere that may affect the safety of aircraft operations within a designated airspace over the northern part of the South China Sea. Weather forecasters at the Airport Meteorological Office issues SIGMET information when hazardous weather and phenomena in the atmosphere such as thunderstorms, tropical cyclones, turbulence, icing occur or are expected to occur in the airspace.

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    For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.

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    TROPICAL CYCLONE WARNING FOR SHIPPING
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    Tropical Cyclone Warning for Shipping

    There is no tropical cyclone warning for shipping*.




    *Tropical cyclone warnings for shipping are issued by the Hong Kong Observatory for tropical cyclones located within the area bounded by 105E and 125E , 10N and 30N.




    For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.

    YESTERDAY'S WEATHER AND RADIATION LEVEL Skip to main content
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    Yesterday's Weather and Radiation Level

    Bulletin issued at 00:15 HKT 18/Oct/2019 
    HKO Readings & Radiation Level

Yesterday's Weather and Radiation Level:
------------------------------------------------------

Hong Kong Observatory
Maximum Air Temperature                     29.7 C
Minimum Air Temperature                     23.9 C
Grass Minimum Temperature                   23.3 C
Relative Humidity                        53 - 80 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2379.2 mm
Against an average of                     2306.7 mm

Other Stations                Min                  Max
King's Park                  23.5 C               28.7 C
Wong Chuk Hang               23.7 C               29.4 C
Ta Kwu Ling                  19.8 C               29.4 C
Lau Fau Shan                 21.6 C               29.7 C
Tai Po                       22.0 C               27.6 C
Sha Tin                      22.3 C               29.2 C
Tuen Mun                     22.3 C               29.7 C
Tseung Kwan O                21.7 C               29.8 C
Sai Kung                     23.7 C               28.0 C
Cheung Chau                  22.5 C               29.5 C
Chek Lap Kok                 24.1 C               30.3 C
Tsing Yi                     23.0 C               29.8 C
Shek Kong                    20.8 C               30.1 C
Tsuen Wan Ho Koon            20.9 C               27.7 C
Tsuen Wan Shing Mun Valley   22.1 C               29.6 C
Hong Kong Park               23.6 C               29.6 C
Shau Kei Wan                 22.9 C               29.9 C
Kowloon City                 22.9 C               29.1 C
Happy Valley                 23.5 C               30.5 C
Wong Tai Sin                 23.3 C               30.2 C
Stanley                      23.7 C               29.7 C
Kwun Tong                    22.7 C               29.4 C
Sham Shui Po                 22.9 C               30.6 C
Kai Tak Runway Park          23.6 C               29.6 C
Yuen Long Park               21.4 C               30.9 C
Tai Mei Tuk               22.6 C               29.7 C

Duration of sunshine (King's Park):              10.4 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
 

Yesterday's (17 Oct 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.14 microsievert per hour.  These are within the normal
range of fluctuation of the background radiation level in
Hong Kong (see Note). The average dose rates measured at the
radiation monitoring stations over various parts of the
territory were as follows :

Station                     Yesterday's average
                            (microsievert/hour)
Ping Chau                           0.09
Tap Mun                             0.09
Kat O                               0.11
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.11
Sha Tau Kok                         0.10
Kwun Tong                           0.13
Sai Wan Ho                          0.09
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.14

Note

      

    1. From readings taken at various locations in Hong Kong in the
past, the hourly mean ambient gamma radiation dose rate may
vary between 0.06 and 0.3 microsievert per hour. (1
microsievert = 0.000001 sievert = 0.001 millisievert)

    2. Temporal variations are generally caused by changes in
meteorological conditions such as rainfall, wind and
barometric pressure.

    3. Spatial variations are generally caused by differences in
the radioactive content of local rock and soil.

    4. The data displayed is provisional. Only limited data
validation has been carried out.
    Climatological Information for 17 Oct
     2003copy right image | Important notices | Privacy policy Last revision date: <18 Oct 2019> 

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